Detailed Explanation of ARM GIC Interrupts – IPI Interrupts
1. Introduction to IPI Interrupts IPI interrupts, or Inter-Processor Interrupts, are essentially the SGI interrupts (Software Generated Interrupts) defined in the ARM GIC architecture. In the GICv3 architecture, there are a total of 16 SGI interrupts (excluding extensions), with interrupt numbers ranging from 0 to 15, as shown in the figure below. Inter-Processor Interrupts are … Read more